[asterisk-users] Zap Problem

[Emre BALCI]

Hii All
I have problem about zap channel.
When I am trying to make 2 sip call in same time first
is succesful but second is fail 
Sip debug is on and received message for failed call
is "Unable to create channel of type 'Zap' failed
Cause 0 unknow"
My Extensions conf;
[nortel]
exten => _1XXX,1,Dial,Zap/1/${EXTEN}
exten => _5XXX,1,Dial,Zap/1/BYEXTENSION
exten => 3351,1,Dial(SIP/test)
exten => test,1,Dial(Goto,3351,1)
exten => 3352,1,Dial(SIP/test2)
exten => 3591,1,Dial(SIP/3591)
exten => 3592,1,Dial(SIP/3592)

Zaptata conf;
switchtype=euroisdn
signalling=pri_net
group=1
context=nortel
dchannel => 16

Zaptel conf;
span=1,1,0,ccs,hdb3,crc4
bchan=1-15,17-31
dchan=16
channel => 1-15,17-31



__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com